Spam v internetové telefonii

Abstract

This bachelor thesis is about spam in internet telephony, it defines basic terms and the principles of SPIT. First part contains basic informations about VoIP communication, methods of SPIT, their analysis and ways how to secure VoIP infrastructure against SPIT. Then my thesis describes the practical SPIT attack and the defensive mechanisms against it. The attack is made by a SPITFILE application, while the AntiSPIT application is responsible for the defense. Last part lists the options of updating current defensive methods against SPIT in VoIP. The thesis consists of seven chapters, the most important being the chapter 4. - Threats in VoIP.